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Commit e3f0f36d authored by Dave Jones's avatar Dave Jones Committed by Ingo Molnar
Browse files

x86/apic: Remove noisy zero-mask warning from default_send_IPI_mask_logical() 

Since circa 3.5, we've had dozens of reports of people hitting
this warning. Forwarded reports have been met with silence, so
just remove the warning if no-one cares.

Example reports:

  https://bugzilla.redhat.com/show_bug.cgi?id=797687
  https://bugzilla.redhat.com/show_bug.cgi?id=867174
  https://bugzilla.redhat.com/show_bug.cgi?id=894865



Signed-off-by: default avatarDave Jones <davej@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20130118175847.GA27662@redhat.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent ff7532ca

arch/x86/kernel/apic/ipi.c

+1 −1
Original line number Diff line number Diff line
@@ -106,7 +106,7 @@ void default_send_IPI_mask_logical(const struct cpumask *cpumask, int vector) 
	unsigned long mask = cpumask_bits(cpumask)[0];

	unsigned long flags;



	if (WARN_ONCE(!mask, "empty IPI mask"))

	if (!mask)

		return;



	local_irq_save(flags);